Oscar Walker was a professional baseball player who played in the National League and American Association during the late 19th century. He was a versatile player who could play multiple positions, including catcher, first base, and outfield. He was known for his strong throwing arm and his ability to hit for power.

Walker began his career with the St. Louis Brown Stockings in 1875. He played in the National League for the next five seasons, playing for the Chicago White Stockings, Providence Grays, and Buffalo Bisons. During this time, he was a consistent hitter, batting over .300 in four of the five seasons. He also had a strong throwing arm, leading the league in assists three times.

In 1882, Walker joined the American Association's Philadelphia Athletics. He played for the Athletics for three seasons, batting over .300 in each season. He also led the league in assists twice and in triples once.

Walker's career ended in 1885 when he was released by the Athletics. He finished his career with a .294 batting average, 1,067 hits, and 545 runs batted in. He also had a strong throwing arm, leading the league in assists five times.

Walker's career was short but successful. He was a versatile player who could play multiple positions and hit for power. He was also known for his strong throwing arm, leading the league in assists five times. He was a consistent hitter, batting over .300 in seven of his nine seasons. Walker's career was cut short due to injury, but he left an impressive legacy in the game of baseball.

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